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. Author manuscript; available in PMC: 2021 Nov 30.
Published in final edited form as: Inhal Toxicol. 2020 Nov 30;32(13-14):477–486. doi: 10.1080/08958378.2020.1850935

Figure 6. Particulate concentrations as a function of e-cig puff durations.

Figure 6.

A, The profile from one exposure cycle is shown with 4 different puffing times of 3, 4, 5, or 6 s with 5 s mix, 180 s exposure, 120 s purge, and 5 s rest. Particulate was passed through a 1:4 ratio diluter and concentration was recorded every 3 s using a Dataram monitoring system. B, exposure profile pattern of 10 consecutive exposure cycles using 5 seconds puff time long with 5 s mix, 180 s exposure, 120 s purge, and 5 s rest between cycles.